Drug-resistant 'superbug' poses threat in Canada

April 8, 2015 11:08 AM

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A nasty stomach bug that sickens thousands of people in Canada each year is growing resistant to most of the medicines used to kill it and could begin to pose serious threat in this country, says a Canadian microbiologist.

A "superbug" strain of shigella is being blamed for an increasing number of illness outbreaks in Canada and the U.S.